age cn.com.cnstrong.demo;
import java.util.Scanner;
import java.util.logging.ConsoleHandler;
public class XiTong { public static void main(String[] args){
Scanner console = new Scanner(System.in);
while(true){
print();
int cmd =console.nextInt();
switch(cmd){
case 1:
System.out.println("请输入一个整数");
int num =console.nextInt();
System.out.println("这个整数"+num+"，的绝对值 是"+pingFangHe(num));
break;
case 2:
System.out.println("请输入1个整数");
int num0 = console.nextInt();
System.out.println("这个整数是"+num0+"，从1到"+num0+"的奇数和 是"+ sum(num0));
break;
case 3:
System.out.println("请输入两个整数");
int num1 = console.nextInt();
int num2 = console.nextInt();
System.out.println("这两个整数是："+num1+","+num2+"平方和是"+num1*num1+num2*num2);
break;
case 4:
System.out.println(" 请输入姓名，年龄，性别");
String name = console.next();
int age = console.nextInt();
String gender = console.next();
boolean sex=true;
if(gender.equals("女")){
sex=false;
}
daYinGeRenXinXi(name,age,sex);
case 5:System.exit(0);
default:System.out.println("命令错误！");
}
}
Scanner（提示这里错了） 【console】 = new Scanner(System.in);
print();
int cmd = console.nextInt();
System.out.println("请输入一个整数：");
int num = console.nextInt();
System.out.println("这个整数是：" + num + ",绝对值是:" + abs1(num));
print();
System.out.println("请输入一个整数：");
int num0 = console.nextInt();
System.out.println("这个整数是：" + num0 + ",从1到" + num0 + "奇数和是:" + sum(num0));
System.out.println("请输入两个整数：");
int num1 = console.nextInt();
int num2 = console.nextInt();
System.out.println("这两个整数是：" + num1+","+num2
+ "。平方和是:" + qiuPingFangHe(num1,num2)); System.out.println("请输入姓名、年龄、性别：");
String name = console.next();
int age = console.nextInt();
String gender = console.next();
boolean sex=true;
if(gender.equals("女")){
sex=false;
}
daYinGeRenXinXi(name,age,sex); }
private static String pingFangHe(int num) {
// TODO Auto-generated method stub
return null;
}
public static int abs1(int number) {
return number > 0 ? number : (-number);
}
public static int qiuPingFangHe(int num1, int num2) {
return num1 * num1 + num2 * num2;
}
public static void daYinGeRenXinXi(String name, int age, boolean gender) {
System.out.println(name + age + (gender ? "男" : "女"));
}
public static int sum(int n) {
int sum = 0;
for (int i = 1; i <= n; i++) {
if (i % 2 != 0) {
sum = sum + i;
}
}
return sum;
}
public static void daYinGeRenXinXi1(String name,int age,boolean gender) {
System.out.println(name+age+(gender?"男":" 女"));
}
public static void print(){
System.out.println("==================================");
System.out.println("== 欢迎光临我的私人工具箱 ==");
System.out.println("== 请按照下面的命令操作 ==");
System.out.println("== 1： 求绝对值 ==");
System.out.println("== 2：求平方和 ==");
System.out.println("== 3：打印信息 ==");
System.out.println("== 4：求奇数和 ==");
System.out.println("== 5：退出系统 ==");
System.out.println("===================================");
System.out.println("请输入命令");
}
}